Belt unit and image forming apparatus using the same
AssigneeRicoh Company, Ltd.
InventorTetsushi Sakuma
Life of this patent
Estimating the term…
Abstract
According to an aspect of the present invention, there is provided a belt unit including: a belt that is formed in an endless shape; a first roller that supports the belt from an inner side of the belt; a second roller that supports the belt from the inner side of the belt; regulation walls that are disposed on both sides of the second roller and that each includes a boss protruding outwardly, the boss having a tapered portion; and plate frames that are disposed on both sides of the belt and that each includes: a first groove portion that supports the first roller; and a second groove portion that supports the second roller, the second groove portion having a rounded edge formed to be run on by the boss through the tapered portion.
Claims9
A belt unit comprising:
- a belt that is formed in an endless shape;
- a first roller that supports the belt from an inner side of the belt;
- a second roller that supports the belt from the inner side of the belt;
- regulation walls that are disposed on both sides of the second roller and that each includes a boss protruding outwardly, the boss having a tapered portion;
- and
- plate frames that are disposed on both sides of the belt and that each includes:
- a first groove portion that supports the first roller;
- and
- a second groove portion that supports the second roller, the second groove portion having a rounded edge formed to be run on by the boss through the tapered portion.
A belt unit comprising:
- regulation walls that are formed to regulate a side deviation of a belt in a direction perpendicular to a rotational direction of the belt and that each includes a boss protruding outwardly, the boss having a tapered portion;
- and
- plate frames that each includes groove portion having a rounded edge formed to be run on by the boss through the tapered portion in accordance the side deviation of the belt.
Dependencies are inferred from the claim text.